A group of South Korean scientists has discovered electronic crystallites in a solid material for the first time in the world, which is expected to help make progress in studies on high-temperature superconductivity, the science ministry said on Thursday.
A research team, led by Professor Kim Keun-su at Yonsei University in Seoul, posted a paper, titled "Electronic rotons and Wigner crystallites in a two-dimensional dipole liquid," in Nature, a prominent science journal, according to the Ministry of Science and ICT.
This marks the world's first experimental discovery of the structure, theorised by Hungarian American physicist Eugene Wigner in 1934, news agency reported.
Wigner crystal refers to a solid or crystalline formation of a gas of electrons enabled by strong repulsion between electrons at low electron density. Normally, a crystal formation is understood as an attraction between atoms.